AIR SYSTEM components that have typically been installed separately on the vehicle (see below for components/areas affected): Air Tanks basis. Operate air devices daily to circulate lubricants within the unit. Pressure protection valves Periodically: Clean filter screens ahead of the valves by removing the screens and soaking them in solvent. Blow them dry with pressurized air before reinstalling them. Safety valve Governor and plumbing Plumbing of the front and rear service air tanks WARNING! Plumbing to accessory systems If the supply and service air tanks are not drained at the recommended frequency, water could enter the air lines and valves.
This could cause corrosion or blockage, which could compromise the brake system safety and potentially cause an ac- cident. Failure to comply may result in death, personal injury, equipment or property damage. These components are required to meet the Federal Motor Vehicle Safety Standards (FMVSS 121 - Air Brake Systems). As the Warning above states, any other type of air dryer installed in the place of an AD-IS Series will require changes, modifications and/or additions to your vehicle’s air system to maintain compliance with FMVSS 121. 5 To eject moisture from the air system tanks, pull the line that is connected to the moisture ejection valve.
Continue pulling until the air comes out free of water. Daily: The supply and service air tanks, must be drained on a daily 5-62 Y53-6077-1B1 (03/17)